By default, if processing an employee's salary through cash or cheque, the generated payslip will come default with an employer and employee signature field.
To remove the field,
1. Go to Staff Directory
2. Select the related employee, select Payroll Info and click Go.
3. Navigate to the Employee Payroll Info section and click Edit.
4. Lastly, under the Payroll Details, tick the Remove Signature From Payslip option.